To compare the antibacterial (against Escherichia coli/Salmonella), antiviral (against HSV-1/2), and NF-κB inhibitory activity of sea buckthorn leaf extracts (SBLE) from different origins.
SBLEs were prepared using 65% ethanol for hot reflux extraction of sea buckthorn leaves from different origins. The differences in their fingerprint profiles were analyzed by liquid chromatography. The colorimetric method was used to detect the inhibitory activity of Escherichia coli and Salmonella. The CCK-8 assay was employed to evaluate the activity of Vero cells infected with HSV-1/2. The luciferase reporter assay was conducted to assess the activity of NF-κB in TNF-α-induced NF-κB reporter (Luc)-HEK 293 cells.
SBLE from Datong and Huzhu exhibited better inhibitory effects on Escherichia coli (with EC50 values of 184.3 and 211.6 μg·mL-1, respectively) and Salmonella (with EC50 values of 284.6 and 300.9 μg·mL-1, respectively). SBLE from Datong, Pingan, Huzhu, Youyu, Heshun, and Zhangbei showed similar inhibitory effects on HSV-1 and HSV-2, with EC50 values ranging from 27 to 36 μg·mL-1. SBLE from Heshun, Zhangbei, and Huzhu exhibited better inhibition of NF-κB, with EC50 values of 122.6, 137.1, and 154.1 μg·mL-1, respectively.
The activities of SBLE from different origins vary, with SBLE from Datong exhibiting the best anti-Escherichia coli/Salmonella activity, SBLE from Youyu showing the best anti-HSV-1/2 activity, and SBLE from Heshun having the best NF-κB inhibitory effect.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |